EBURNA. 209 



C. fusiFORMis, Deshayes. PI. 81, figs. 45T, 458. 



Straw color, with three orange bands. 



Cnmhodia. 

 Another possible vai-iety of G. Helena. 



C. BocouRTi, Brot. PL 81, fig. 459. 



Light corneons, with from one to five brown bands. 

 Length. 22 mill. 



Pexabury, Siam. 



The ribs are more distant than in the preceding species. There 

 is a slight shoulder, the farther development of which might run 

 the species into ('. scalarina. 



C. Cambojiensis, Reeve. PL 81, figs. 451, 452. 



Straw colored or greenish olive. Length, '75-1 inch. 



Ca iiibo(Ua. 



C. SCALARTNA, Dcshajes. PI. 81, fig. 453. 



Orange-brown. Length, 12 mill. 



Cambodia. 

 C. JuLT.iENi, Deshayes. PL 81, figs. 454-45fL 



Yellowish white, with three usually broad chocolate bands. 

 Length, l()-24 mill. 



Cambodia. 



C. bizonafa, Desh. (fig. 455), does not dift'er, and G. Broti, 

 Desh. (fig. 456), is a variety in which the spire is more depressed, 

 making the form more globose, with the longitudinal ribs merely 

 rudimentary. 



C. Annesleyii, Benson. Qirilon^ Malabar. 



C. FUSCA, H. Adams. Cambodia. 



I cannot attempt the identification of these two imfigured 

 species. 



1^ Sub-Family EBURNIN.E. 



UeniK- EBTIENA, Lam. 



The Eburna' comprise a small, ver}' well defined group of about 

 a dozen species, the generic character being unmistakable in all 

 of them. The whorls have more or less shoulder; those of ^. 

 Zeylandica showing the least, being a mere slight flattening of 

 the contour next below the sutures, whilst in E. spirata there is 

 27 



